No Gamerscore at all After 18 Hours

I know this is basically a known Issue, but all i can find about this Topic was posted some time ago.
I just cant get any Achievements to pop, nothing at all. It still says 0/1000, which annoys me quite a bit, since i’d like to get to the Next Tier, especially for Horizon 3.
But i am just unable to get the 500 Points for Gamerscore.

Is there any known fix to this Issue?
I read something, which said to enable Telemetry under Windows 10, but that did nothing aswell.

Excuse some spelling Errors, since im not a native speaker that can happen :stuck_out_tongue:

Specs:
Windows 10 Pro 64-Bit
Intel Core i7 2600k
EVGA GTX 980 SC
16GB DDR3

P.S: Here you can see, that i got basically everything else…

I know. that Forza Hub takes around 24-48Hrs to sync, but i didnt even get an Achievement to “Pop” at all…